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| author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-05-01 10:20:55 +0100 |
|---|---|---|
| committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-05-01 10:20:55 +0100 |
| commit | f92b83e597d933f7b497892e270a0737392ca287 (patch) | |
| tree | a55039cfec01ae92eccb2508a8a3db9b4587bdff | |
| parent | 47d265319bc1d8711c147c1e85d3cce699543d4c (diff) | |
| download | xen-f92b83e597d933f7b497892e270a0737392ca287.tar.gz xen-f92b83e597d933f7b497892e270a0737392ca287.tar.bz2 xen-f92b83e597d933f7b497892e270a0737392ca287.zip | |
xend: Ensure 2MB free before creating any domain. All domain creations
have an implicit memory overhead.
Signed-off-by: Keir Fraser <keir@xensource.com>
| -rw-r--r-- | tools/python/xen/xend/XendDomainInfo.py | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/tools/python/xen/xend/XendDomainInfo.py b/tools/python/xen/xend/XendDomainInfo.py index c082c19090..f1c602a2d7 100644 --- a/tools/python/xen/xend/XendDomainInfo.py +++ b/tools/python/xen/xend/XendDomainInfo.py @@ -1419,9 +1419,13 @@ class XendDomainInfo: raise VmError("HVM guest support is unavailable: is VT/AMD-V " "supported by your CPU and enabled in your " "BIOS?") - # Hack to pre-reserve some memory for HVM setup. - # Needed because Xen allocates 1MB by default immediately. - balloon.free(2*1024) # 2MB should be plenty + + # Hack to pre-reserve some memory for initial domain creation. + # There is an implicit memory overhead for any domain creation. This + # overhead is greater for some types of domain than others. For + # example, an x86 HVM domain will have a default shadow-pagetable + # allocation of 1MB. We free up 2MB here to be on the safe side. + balloon.free(2*1024) # 2MB should be plenty self.domid = xc.domain_create( domid = 0, |